baber/WOPTO huggingface dataset:
Patent GB-128979-A (GB)
Title: Improvements in or connected with Balloons.
IPC: B64B1/40
Filed: 1917-09-08
Abstract: 128,979. Aeronautical Instrument Co., and Brewer, G. Sept. 8, 1917. Aerostats.-A pressure-relief device for balloons comprises a sleeve 1 in communication with the balloon and normally held in the position shown by elastic cords 3, any increase of pressure above a predetermined amount causing the sleeve to expand and tear off a ripping patch 5 to a greater or lesser extent by pulling a cord 7. The sleeve has a fabric flange or disk 2 for attachment to the balloon, and its outer end is closed by being bound around a reel 4. The cords 3 are preferably of the type which elongate only after a predetermined tension has been reached. Communication with the balloon is effected through a sleeve 8, which may be tied to prevent further escape of gas after the removal of the patch 5.
Patent GB-341362-A (GB)
Title: Improvements in and relating to rubber lined centrifugal pumps
IPC: F04D29/42
Filed: 1930-04-26
Abstract: 341,362. Centrifugal pumps. NAAMLOOZE VENNOOTSCHAP SCHEEPSWERF EN WERKTUIGENFABRIEK WERF CONRAD, Haarlem, Holland. April 26, 1930, No. 12908. Convention date, June 13, 1929. [Class 110 (i).] A lining for a centrifugal pump consists of rubber secured to backing 9 which is attached to the casing 12 by screw bolts 11. A perforated sheet 7 is embedded in the rubber and is secured by rivets 10 to the backing 9. The lining may be attached to the impeller in a similar manner and it may be reinforced at bends.
Patent GB-842118-A (GB)
Title: Improvements relating to analogue computers
Inventor: MILLANE MICHAEL JOHN
IPC: G01S13/937
Filed: 1957-04-23
Abstract: 842,118. Electric analogue computers. BRITISH THOMSON-HOUSTON CO. Ltd. May 19, 1958 [April 23, 1957], No. 12940/57. Class 37. In an arrangement for predicting the minimum passing distance d, Fig. I, between two relatively moving objects A, B the wipers T1, T2, T3, Fig. 2, on tapped input transformers are positioned by mechanical inputs proportional to the numerical values of vectors Rl and R2 Fig. 1 representing the range at two different times, and a sine resolver Res a phase shifter PSI in the output leads from taps T3 and T1 being fed with a mechanical signal corresponding to the angular distance # between the vectors to produce signals VA, VB, equal to R 1  R 2  Sin #, and #R 1 <SP>2</SP> + R 2 <SP>2</SP>-2R 1 R 2 Cos # respectively. The two signals are compared by adjusting a tapping d on an auto transformer T4 to give a zero reading in a meter M, VB having been brought into phase correspondence with VA by a further phase shifter PS2. The setting of dial d indicates the required minimum distance. The arrangement is said to be used in conjunction with ship-borne radar for naviga tional purposes.
Patent GB-221842-A (GB)
Title: Improvements in electric immersion heaters
IPC: H05B3/04
Filed: 1923-05-16
Abstract: 221,842. Belling, C. R. May 16, 1923. Wire and ribbon resistances, threaded.-In an immersion heater of the type comprising a heating element removably enclosed in a protective casing c adapted to be secured to the wall of a vessel, the heating element comprises a solid mass of fireclay or the like, having one or more bores therein containing the resistance element a, the fireclay being of the same cross-section as the casing c so as to fit closely therein. The fireclay mass may be made of a number of sections which may be bolted together. Longitudinal grooves may be formed in the outer surface of the fireclay for carrying off any condensation liquid in the casing c.
Patent GB-138004-A (GB)
Title: Improvements in plate clamping devices for riveting
IPC: B25B31/00
Filed: 1919-05-26
Abstract: 138,004. Gilmore, S. R. May 26, 1919. Clamps. - A clamp, particularly for drawing together ships' plates during riveting, comprises means such as a bar passing through holes 13, 14 in the plates 10, 11, and connected by a slide 19, 22 and screw 15 to au abutment 17, which may be cylindrical, as shown, or U-shaped. A slot 23 in the portion 22 may be provided to allow different sized bars 12 to be used. A ball-bearing 21 is preferably used between the screw 15 and the slide 19, and a plate 26 keeps the bearing in position.
Patent GB-675859-A (GB)
Title: Improvements in or relating to lattice towers
IPC: E04H12/10
Filed: 1949-05-18
Abstract: 675,859. Lattice towers. PIRELLI-GENERAL CABLE WORKS, Ltd., and BOWLING, W. F. April 18, 1950 [May 18, 1949], No. 13234/49. Classes 20(i) and 20(ii) In a lattice tower of tapered form comprising a number of super-posed stages, each of which is formed by three or more panels, wherein the lower corners of each panel are connected to the diagonally opposite corner by a bracing member, each bracing member is divided into two or more sections which lie entirely on the inner side of a straight line joining its ends and the junctions of the sections are connected by tie members to the top corner of the panel subtended by the bracing member. The bracing member sections are pin jointed together or are riveted or otherwise rigidly connected together and as each section is shorter than the diagonal the inherent tendency to buckle under compressive stress is reduced. Fig. 2 shows a panel having bracing members comprising two sections 8, 9 and 13, 14 and Fig. 4 shows bracing members comprising three sections 20, 21, 22 and 23, 24, 25, while Fig. 5 shows a tower with panels having bracing members comprising two section of which the lower section 8 or 13 is the same length as the tie member 11 or 16. The panels may have unstressed members 18 in the areas adjacent the corner legs and one or more similar members may connect the upper frame member to one of the bracing sections.
Patent GB-474834-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J9/12
Filed: 1936-05-11
Abstract: 474,834. Electrode materials. BAIRD TELEVISION, Ltd., and KING, E. B. May 11, 1936, No. 13301. [Class 39 (i)] A secondary electron-emitting surface of a metallic hydride is produced on an electrode by enclosing the electrode in an envelope and admitting hydrogen to form the required hydride. Metals of the second and third groups of the periodic table may be used. Metal electrodes may be degassed in vacuo and treated with hydrogen, the formation of hydride being produced by heat or by an electric discharge between the electrode and another electrode within the envelope. The metal of the hydride, for example, potassium or caesium, may be evaporated in vacuo or, for example, in the case of copper, it may be sputtered on to an electrode of another metal, and the thickness of the layer of hydride may be regulated by controlling the temperature or stopping the discharge current. The electrode may be treated with hydrogen in the discharge tube itself or in a separate vessel. The Provisional Specification refers to the formation of secondary electron-emitting surfaces by covering electrodes consisting in the main of metal or other substances with thin layers of non- metallic substances in general.
Patent GB-167834-A (GB)
Title: Attachments to spring frames for supporting the bodies of perambulators
IPC: B62B9/18
Filed: 1920-05-14
Abstract: 167,834. Bollen, W. A., and Bollen, A. J. H., (trading as Bollen & Son, W. A.). May 14, 1920. Axles; springs, arrangement of. - The ceesprings D of a perambulator are carried by brackets C, Fig. 2, projecting downwardly and outwardly from the axle A, or by a bar F, Fig. 3, secured to a cranked axle G, the arrangement being such that the springs pass beneath the hubs of the wheels, thereby permitting the use of a wider body. The central portion of the springs D are connected by a cross-bar E, Fig. 2.
Patent GB-1215228-A (GB)
Title: Improved hinge arrangement for deployable appurtenances on a body
IPC: F24J2/54
Filed: 1968-03-20
Abstract: 1,215,228. Satellite deployment. SUDAVIATION SOC. NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. 20  March, 1968 [31 March, 1967], No. 13386/68. Heading B7W. [Also in Division F2] A device 9 for deploying parts (e.g. solar cells) of a body (e.g. an artificial satellite) comprises deployment means (e.g. a spring 21 of copperberyllium for swinging the arm 2d from the position 2d 1  to the position 2d) damping means (e.g. a member 29 which undergoes torsional plastic deformation as the arm 2d overshoots to the position 2d 2 ) and a partial return motion means (e.g. a spring 24 to return the arm to the position 2d), the deployment means, damping means and return motion means all being contained in a housing 13 enclosing a pivot 18 which turns with the deployed part (e.g. arm 2d). In the embodiment shown the parts 13, 14, 15 are fixed to a support 7 on the satellite, the support having a low friction bearing 31 (e.g. of polytetrafluoroethylene) in which rotates the pivot 18, with the arm 2d carrying a solar cell. The deployment spring 21 is permanently coupled between the housing 13 (and therefore the satellite) at the end 21a, and the pivot 18 (and the arm 2d) at the end 22. The damping member 29 is coupled via members 13, 14, 15 to the satellite, and is not affected by the motion of the arm until it reaches the position 2d (Fig. 7) when two pegs 19 on the pivot 18 engage a pair of lugs 30 on the member 29. The partial return spring 24 is attached at its end 25 via member 14 with the satellite, its other end 26 is normally reacted by a peg 27 in the housing 13, 14 but when the arm passes beyond the position 2d towards 2d 2  a lug 20 on the pivot 18 engages the end 26. The arm is held in the position 2d by a latch comprising a spring member 10 on the support 7 engaging an adjustable peg 11 on the arm. Two alternative forms of damping means are shown. On one two radially extending pins (18c), Fig. 14 (not shown), engage two recesses (29b) in a sheet metal tube, the recesses being plastically deformed during the damping. On the other, two axially extending pins (18e), Fig. 16 (not shown), engage slots (29f, 29g) a disc (29d), the slots becoming elongated during the damping. In Fig. 1 is shown a satellite 1 having four deployable solar cells 2a ... 2d held in an undeployed position by a strap 3 tensioned by tensioners 4a and 4b. When it is desired to deploy the panels cutters 4, on panels 2a and 2c, sever the strap enabling a pair of the devices 9 on each panel to deploy that panel. To co-ordinate the deployment of the panels, each device 9 carries a bevel gear sector 34 which engages with a similar sector on the next adjacent device 9.
Patent GB-528764-A (GB)
Title: Improved process and apparatus for the gavanoplastic multiplication of sound record bands
Filed: 1939-05-04
Abstract: 528,764. Sound record bands. DANIEL, K. May 4, 1939, No. 13399. Convention date, May 6, 1938. [Class 41] In preparing galvanoplastic copies of a record band on which sound is mechanically recorded as at 3 in a layer 2 of wax disposed on a strip of film 1, a conductive layer 4 is formed on the inscribed or recorded area of the wax by cathode atomizing, graphiting, or by chemical means, and the band is wound along with an anode band 5, for instance of copper, and placed in a galvanic bath, distance pieces 6, bearing on the unrecorded marginal edges of the wax layer, preventing contact between the anode and the conductive layer. The distance pieces may be projections stamped out of the anode band or may comprise clips of non-conductive material disposed over the edges thereof..
Patent GB-806929-A (GB)
Title: Purification of alkali metal salts of phenoxymethylpenicillin
Inventor: BEATTIE GEORGE FISHER
IPC: C07D499/16
Filed: 1956-05-02
Abstract: Alkali metal salts of phenoxymethylpenicillin, free or substantially free from coloured impurities and of high potency, are obtained by treating an aqueous solution of an alkali metal salt of phenoxymethylpenicillin with a corresponding alkali metal salt and allowing the alkali metal salt of phenoxymethylpenicillin to separate therefrom.  It is preferred that the starting material contains between 100,000 and 200,000 units of phenoxymethylpenicillin per millilitre and that the corresponding alkali metal salt be present in the reaction mixture in a concentration of about 30 per cent.  The alkali metal salt may be added to the aqueous penicillin solution in the form of the anhydrous salt or, if very soluble in water, in the form of a concentrated aqueous solution thereof.  The aqueous penicillin solution may be prepared by dissolving an alkali metal salt of phenoxymethylpenicillin in water, or by extracting an organic solvent solution, e.g. butyl acetate solution containing phenoxymethylpenicillin with an aqueous solution of an alkali metal bicarbonate, e.g. potassium bicarbonate.  In examples, potassium phenoxymethylpenicillin is obtained by adding to an aqueous solution of crude potassium phenoxymethylpenicillin (a) anhydrous potassium acetate, (b) a concentrated aqueous solution of potassium acetate, or (e) potassium chloride.  Sodium phenoxymethylpenicillin is obtained by adding to an aqueous solution of crude sodium phenoxymethylpenicillin (a) anhydrous sodium acetate or (b) sodium chloride.
Patent GB-401017-A (GB)
Title: Improvements in electro-magnetically-operated electric switches
IPC: H01H51/08
Filed: 1932-05-11
Abstract: 401,017. Electromagnetic switches; electrically-tripped switches. HARVEY, T., 348, St. Georges Road, Glasgow. May 11, 1932, No. 13538. [Class 38 (v).] In a switch of the kind in which the circuit is alternately closed and opened through a pawl and ratchet or pinwheel device by successive energizations of a winding 1, the movable contact-member 22 of the switch is carried by a shaft 21 adapted to be rocked by the engagement of an arm 20 on the shaft with one of a pair of spaced pins 14 which project from one side of the ratchet or pin wheel. In the construction shown in Fig. 2, a pawl 16 pivoted to a rod 18 connected to the core of the winding 1 is adapted to engage pins 14, 15 connecting a pair of discs 10, alternate pins 14 projecting from the face of one of the discs. A retaining pawl 19 prevents backward rotation of the discs. The rod 18 may carry additional contacts 23 adapted to close the circuit of a second solenoid, so that a number of switches may be operated simultaneously. In a modification, Fig. 3, the pawl 26 is carried by an arm 27 connected to the armature of an electromagnet 29, and cooperates with a ratchet wheel 24 provided with the pins 14. A coil 33 may be adapted to act on any suitable part of the mechanism, such as the retaining pawl 19, to release the discs 10 or ratchet wheel 24, and allow the switch to open, in the event of an overload. The rod 18 may carry a handle 18<1> for manual operation.
Patent GB-501183-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B61D17/04
Filed: 1938-05-06
Abstract: 501,183. Vehicle bodies. BUDD MANUFACTURING CO., E. G. May 6, 1938, No. 13583. Convention date, May 6, 1937. [Classes 103 (iv) and 108 (i)] In a truss structure for the side frames of, railway, omnibus, and like vehicle bodies the lower chord or side sill is made of a hollow triangular cross - section, being built up of separate plates of rolled section united by welding. As shown the lower side sill comprises a vertical plate 20 which is welded to the side posts 14 and may be offset or beaded at 21, an horizontal plate 17 having at one edge a depending flange 19 adapted to be welded to the plate, 20, and a series of inclined plates' 26 completing the triangular structure, which are disposed between the transverse floor beams 15 and are welded at their edges 26a, -26b to the plates 17, 20 respectively.
Patent GB-1273854-A (GB)
Title: Dual keyboard typewriter arrangement
Inventor: NAISH ANTHONY
IPC: B41J3/54
Filed: 1970-03-20
Abstract: 1,273,854. Typewriters. HUNTS (ENTERPRISES) Ltd. 19 April, 1971 [20 March, 1970], No. 13594/70. Heading B6F. A typewriter comprises two typewriter mechanisms each having a corresponding keyboard, a first, master, mechanism A-B ineluding carriage escapement mechanism 6 operated by a universal bar 1, the second, subordinate, mechanism B-C being devoid of escapement mechanism but including a universal bar 1 which operates the escapement mechanism of the master mechanism, through a linkage comprising a shaft 7 and arms 9, 10.
Patent GB-1461882-A (GB)
Title: Single-component polyurethane varnishes of long shelf life
IPC: C08G18/00
Filed: 1974-03-27
Abstract: 1461882 Polyurethane varnishes VEBACHEMIE AG 27 March 1974 [30 March 1973] 13641/74 Heading C3R Single - component polyurethane varnishes comprise, dissolved in a solvent for polyurethanes, the reaction product of 3-isocyanatomethyl - 3,5,5 - trimethylcyclohexylisocyanate with a branched hydroxyl terminated polyester based on a mixture of aliphatic and aromatic dicarboxylic acids, the NCO : OH ratio being 2 : 1, 15 to 85 mole per cent of the dicarboxylic acids being aliphatic acids and the remainder aromatic acids, the polyester having been prepared in the presence of a tin compound and containing 0À1 to 0À5% of chemically bound tin, the reaction being carried out in the absence of extraneous catalysts and at a temperature of 10‹ to 35‹ C. The varnishes may also contain a pigment. In examples the polyesters are prepared from isophthalic acid or phthalic acid. adipic acid, hexanediol-(1,6) and trimethylolpropane in the presence of di-n-butyl tin oxide. The solvent may be a mixture of butyl acetate, a commercial xylene mixture and ethyl glycol acetate curing of the lacquers takes place by reaction with moisture in the atmosphere.
Patent GB-248228-A (GB)
Title: Improvements in sound reproducing devices
IPC: H04R1/20
Filed: 1925-05-26
Abstract: 248,228. Western Electric Co., Ltd., (Western Electric Co., Inc.). May 26, 1925. Diaphragms; telephones.-A sound reproducing device comprises a diaphragm 14 of relatively large size and of light material such as parchment paper, aluminium, &c., which is fixed at one end by a clamp 17 tensioned by screws 21, 22, 23, and is attached at the other edge to a member 15 which is rocked by suitable driving means such as an arm 26 on the vibrating armature of a motor element 24. Alternatively, the member 15 may be given a horizontal reciprocation. The diaphragm may be trapezoidal, as shown, or the fixed edge may be curved, the widths of the free ends of the diaphragm being respectively half the wave length of the highest and lowest frequencies to be reproduced. In modifications, a hollow member 14, stiffened by trussing, is employed.
Patent GB-655280-A (GB)
Title: Improvements in or relating to photographic shutters
IPC: G03B9/20
Filed: 1948-05-20
Abstract: 655,280. Photographic shutters. KODAK, Ltd. May 20, 1948, No. 13745. Convention date, May 23, 1947. [Class 98 (i)] In a photographic shutter comprising pivotally-mounted shutter blades which open and close during tensioning of the shutter, the exposure opening being meanwhile covered by one or more pivoted cover blades, and means including a trigger for operating the shutter and cover blades in timed relation for a normal exposure, a speed-selecting device for determining the duration of the exposure including " bulb " exposures is provided and carries means for moving the cover blade or blades to a position uncovering the exposure opening when the selecting device is set to " bulb," so that the trigger actuates only the shutter blades when such an exposure is made. As described, an everset multiple symmetrical double-ended bladed shutter provided with cover blades, which close the exposure aperture during the opening and closing of the shutter blades which occurs during the setting period of the shutter-operating trigger movement as described in Specification 655,279, has a speedsetting ring 44 provided with a concentric arcuate slot in which a pin 32 connecting the pivoted cover blades normally moves freely but which is formed with an inclined portion 63 so that when the speed ring is set for a bulb exposure, the pin 32 is cammed outwardly opening the cover blades which are held open by the pin entering a narrow portion 64 of the slot. The bulb exposure is made by movement of the shutter blades only on operating the shutter trigger whose movement is arrested as soon as the blades are fully opened by a pin 57 on the ring 44 engaging a lug on the trigger, the shutter being closed and the trigger returned to rest by the shutter spring blade driving and the trigger spring respectively.
Patent GB-378424-A (GB)
Title: A foaling alarm or signal for veterinary use
IPC: A61D17/00
Filed: 1931-05-09
Abstract: 378,424. Signalling movements of animals. BROWN, J. P., Dipple Farm, Fochabers, and SOUTER, J. S., Greyfriars Ironworks, Greyfriars Street, Elgin, both in Elginshire. May 9, 1931, No. 13761. [Class 81 (ii).] An alarm for veterinary use is operated by a flexible connection to the animal, the signal being actuated only when the connection is drawn downwards by the animal changing to a reclining or semi-reclining position. In the construction shown, the flexible connection is secured to the animal at a point above its shoulders in any convenient manner and is connected at its upper end to the signal-actuating mechanism in a casing 6 which is attached to a suitable overhead structure. The connection may be taken directly to the casing or led along a radial horizontal arm 7 which rotates in bearings 31. The signal-actuating mechanism consists of a winding drum 10 driven by a spring 13. On rotation of the drum, against the spring, by the animal moving, the travelling nut 17 moves outwards and engages a contact nut 20, the position of which is adjustable on the screwed pin 21 so that no contact can occur until the animal lies down, and closes an electric circuit, thus operating an alarm, such as a bell. A visible indicator may be included in the circuit, and a switch may be placed near the animal for testing the circuit. When the animal rises, the connection is rewound on the drum and the alarm contact is opened. Alternatively, the drum may drive a brush contact, through a reduction gearing, over an insulated disc having a metal segment, the brush contact being adjustable according to the length of connection to be unwound before the alarm operates.
Patent GB-401362-A (GB)
Title: Improvements in and connected with relay devices for organs and like musical instruments
IPC: G10B1/04
Filed: 1932-05-13
Abstract: 401,362. Light current relays. WALKER & SONS, Ltd., J. W., WALKER, R. H., both of Southfield Road, Acton, London, and SYMONDSON, A. H., 69, Jersey Road, Osterley, Hounslow, Middlesex. May 13, 1932, No. 13836. [Class 38 (v).] An electromagnetic multiple-contact relay switch, for organs and like musical instruments such as are described in Specification 354,367, [Group XXXVIII], comprises parallel spring contact-fingers 4 mounted in grooves 9 in a wooden block 5 which is provided at one end with a transverse rest 7 on which the fingers 4 bear with a slight initial pressure to engage quickly and evenly with a common contactmember 3. The fingers 4 at their other ends rest in shallow grooves 11 and are connected to staggered rows of pins 121, 131 passing through the block to connect with the leads. In order to change the line of contact the block 5 is longitudinally slidable in the clip 15 which secures it to the main support 14. The contactmember 3 is cranked at 16 to provide a spindle 17 for a spring - or gravity - returned armature 2 of an adjustably-mounted electromagnet 1. The armature has a screw-adjustable leather back-stop 18. The electromagnet may also operate a second contact-block provided at its other side, the spindle 17 being again cranked to provide a second contact-member. The central part of the block 5 is covered with a paper sheet 9<1>.